Lighting apparatus

ABSTRACT

A lighting apparatus includes a driver, a light source, and a controller. The driver is used for converting an external power to generate multiple driving currents. The light source includes a package holder integrating multiple LED modules having different output light parameters. The package holder has multiple terminals for separately receiving the driving currents to control the multiple LED modules independently in the package holder. The controller is used for controlling the driver for adjusting a relative ratio among the multiple driving currents to render an output light of the light source corresponding to predetermined optimized settings for at least an object illuminated by the light source.

FIELD

The present invention is related to a lighting apparatus, and moreparticularly related to a lighting apparatus optimized for illuminatingdifferent objects.

BACKGROUND

The time when the darkness is being lighten up by the light, human havenoticed the need of lighting up this planet. Light has become one of thenecessities we live with through the day and the night. During thedarkness after sunset, there is no natural light, and human have beenfinding ways to light up the darkness with artificial light. From atorch, candles to the light we have nowadays, the use of light have beenchanged through decades and the development of lighting continues on.

Early human found the control of fire which is a turning point of thehuman history. Fire provides light to bright up the darkness that haveallowed human activities to continue into the darker and colder hour ofthe hour after sunset. Fire gives human beings the first form of lightand heat to cook food, make tools, have heat to live through cold winterand lighting to see in the dark.

Lighting is now not to be limited just for providing the light we need,but it is also for setting up the mood and atmosphere being created foran area. Proper lighting for an area needs a good combination ofdaylight conditions and artificial lights. There are many ways toimprove lighting in a better cost and energy saving. LED lighting, asolid-state lamp that uses light-emitting diodes as the source of light,is a solution when it comes to energy-efficient lighting. LED lightingprovides lower cost, energy saving and longer life span.

The major use of the light emitting diodes is for illumination. Thelight emitting diodes is recently used in light bulb, light strip orlight tube for a longer lifetime and a lower energy consumption of thelight. The light emitting diodes shows a new type of illumination whichbrings more convenience to our lives. Nowadays, light emitting diodelight may be often seen in the market with various forms and affordableprices.

After the invention of LEDs, the neon indicator and incandescent lampsare gradually replaced. However, the cost of initial commercial LEDs wasextremely high, making them rare to be applied for practical use. Also,LEDs only illuminated red light at early stage. The brightness of thelight only could be used as indicator for it was too dark to illuminatean area. Unlike modern LEDs which are bound in transparent plasticcases, LEDs in early stage were packed in metal cases.

In 1878, Thomas Edison tried to make a usable light bulb afterexperimenting different materials. In November 1879, Edison filed apatent for an electric lamp with a carbon filament and keep testing tofind the perfect filament for his light bulb. The highest melting pointof any chemical element, tungsten, was known by Edison to be anexcellent material for light bulb filaments, but the machinery needed toproduce super-fine tungsten wire was not available in the late 19thcentury. Tungsten is still the primary material used in incandescentbulb filaments today.

Early candles were made in China in about 200 BC from whale fat and ricepaper wick. They were made from other materials through time, liketallow, spermaceti, colza oil and beeswax until the discovery ofparaffin wax which made production of candles cheap and affordable toeveryone. Wick was also improved over time that made from paper, cotton,hemp and flax with different times and ways of burning. Although not amajor light source now, candles are still here as decorative items and alight source in emergency situations. They are used for celebrationssuch as birthdays, religious rituals, for making atmosphere and as adecor.

Illumination has been improved throughout the times. Even now, thelighting device we used today are still being improved. From theillumination of the sun to the time when human can control fire forproviding illumination which changed human history, we have beenimproving the lighting source for a better efficiency and sense. Fromthe invention of candle, gas lamp, electric carbon arc lamp, kerosenelamp, light bulb, fluorescent lamp to LED lamp, the improvement ofillumination shows the necessity of light in human lives.

There are various types of lighting apparatuses. When cost and lightefficiency of LED have shown great effect compared with traditionallighting devices, people look for even better light output. It isimportant to recognize factors that can bring more satisfaction andlight quality and flexibility.

For commercial or other environments, it is important to optimize thevisual effect by adjusting the light parameter. It is usually difficultfor users to adjust directly by choosing or selecting parameters ofmultiple light devices.

Furthermore, it is not convenient by mixing multiple light devices torender a desired optical effect.

Therefore, it is beneficial to design a lighting apparatus that may beconveniently and easily to be adjusted by users.

SUMMARY

In some embodiments, a lighting apparatus includes a driver, a lightsource, and a controller.

The driver is used for converting an external power to generate multipledriving currents. The light source includes a package holder integratingmultiple LED modules having different output light parameters. Forexample, the LED modules have different color temperatures, colors,spectrum compositions and distributions.

The package holder has multiple terminals for separately receiving thedriving currents to control the multiple LED modules independently inthe package holder.

The controller is used for controlling the driver for adjusting arelative ratio among the multiple driving currents to render an outputlight of the light source corresponding to predetermined optimizedsettings for at least an object illuminated by the light source.

The driver and the controller may be integrated as an integrated chip orproduced as multiple circuit components electrically connected. Thedriver and the controller may be integrated on the package holder orplaced as separate modules.

In some embodiments, the package holder is a substrate plate, themultiple LED modules are mounted on the substrate plate directly. Insome embodiments, the LED modules are placed in a package structureswith plastic housing and external electrodes. However, in someembodiments, a circuit board or a substrate plate is directly used asthe package holder, e.g. COB (chip on board) LED devices, which LEDchips are directly mounted on the substrate plate.

In some embodiments, the multiple driving currents generated by a PWM(Pulse Width Modulation) power circuit. The relative ratio of themultiple driving currents corresponds to a duty ratio corresponding toeach driving current of the PWM power circuit. For example, when thereare four LED modules, the PWM power circuit supplies driving currents tothe four LED modules sequentially and alternatingly over time. Forexample, the first LED module receives the driving current for a firsttime period, then the second LED module receives the driving current fora second time period. The other two LED modules receive the drivingcurrents under an ordered sequence, too. Then, the first LED module issupplied with the driving current again and the process is repeatedagain and again under very rapid speed.

The time period ratio determines the relative ratio mentioned above andconsequently render an output light of a corresponding opticalparameter.

In some embodiments, the multiple LED modules respectively comprisedifferent fluorescent layers to render the different output lightparameters.

In some embodiments, the multiple LED modules have the same type of LEDchips.

The different output light parameters are achieved by disposingdifferent fluorescent layers.

In some embodiments, the fluorescent layers are separated by aseparating line. The separating line may be straight lines, saw lines,wave lines between two adjacent LED modules.

In some embodiments, the multiple fluorescent layers are arrangedsymmetrically with respect to a center point of the light source formore evenly rendering a mixed light.

In some embodiments, the lighting apparatus may also include aseparating unit disposed between the multiple fluorescent layers.

There may be convex and/or concave micro-structures disposed on asurface of the separating unit for better attaching fluorescentmaterial. It is particularly important when the LED modules are operatedfor a long time and the heat may loosen the attachment of thefluorescent material of the fluorescent layer.

In some embodiments, there are hooks for further enhancing theattachment. The separating unit may be made of transparent material.

In some embodiments, the separating unit has concave structure forfirmly attaching the fluorescent layers.

In some embodiments, the multiple fluorescent layers are attached to alens disposed above LED chips of the multiple LED modules.

In some embodiments, a surface of the multiple fluorescent layers formsa lens surface for changing light paths of the light source.

The lens surface may diffuse the light of the light source. For example,the lens surface helps diffusing the light of the light source evenly toa surface.

In some embodiments, the light of the light source is condensed as alight beam.

In some embodiments, the package holder has multiple different tiltsurfaces respectively mounting the multiple LED modules for adjustinglight output directions of the multiple LED modules.

In some embodiments, the lighting apparatus may also include a manualswitch for selecting from multiple options corresponding to differentoptimized object illumination sets.

There are several ways for designing the manual switch for providingmore convenient operations. For example, the manual switch may be arotation button.

In some embodiments, the manual switch may include multiple optionswitches respectively corresponding to different objects, and eachoption switch is manually turned on for enhancing illumination effectfor the corresponding object.

In some embodiments, the manual switch may include multiple optionswitches, each option switch corresponding to an object type. Whenmultiple option switches are turned on, the controller determine anassociated relative ratio mentioned above for providing an optimizedlight over the illuminated objects selected.

In some embodiments, the controller adjusts the relative ratio accordingto a time parameter provided by a time device.

For example, the controller may have a clock indicating whether it ismorning, afternoon or evening. The clock may also indicate whether it isa week day or a weekend. Such time information may be associated withdifferent settings of the controller for determining a best settingcorresponding to different timing points.

This is particularly helpful and attractive in markets like Costco orsupermarkets. People have different moods in different time and suchcharacteristics may be used by market specialists to find optimizedsettings of the lighting. Such finding may be programmed to thecontroller for providing a best parameter for the market to optimize thesales of the market.

In some embodiments, the controller has multiple sets of customerparameters, when the controller receives a customer instruction from anexternal device. The controller changes the relative ratio according toone corresponding customer parameter associated to the customerinstruction.

In some embodiments, the controller calculates the relative ratioaccording to stored parameters of the multiple LED modules when the sametype of the lighting apparatus has multiple types of combination of theLED modules.

For example, a lot of lighting apparatuses of the same type of lightingapparatus may be manufactured by a factory. Even when the lightingapparatuses are classified as the same type of product, they may havedifferent components from different suppliers. In such case, thecomponents from different suppliers may have certain difference.

The parameters of different LED modules are detected and recorded. Atable which records the parameters may be stored in a memory circuitworking with the controller for determining and finding a correspondingadjustment for providing a similar final parameter for the same type oflighting apparatus.

This feature is important for big company to provide high consistencequality of products.

In some embodiments, the controller adjusts the relative ratio accordingto a detected environment light parameter. For example, a mobile phoneor a tool for detecting light parameters of environment is used forgenerating an information that is sent to the controller and used fordetermining a final light output.

For example, the original optimized relative ratio among different LEDmodules is determined when no other light is used. If the environmenthas lot of red light, for example, the controller may decrease the redlight component when mixing lights of the LED modules.

In some embodiments, the detected light parameter is transmitted from anexternal device.

In some embodiments, the package holder has multiple electrode pins asthe multiple terminals to be plugged to a socket for separatelyreceiving the multiple driving currents.

BRIEF DESCRIPTION OF DRAWINGS

FIG. 1 illustrates a diagram of a light source example with multiple LEDmodules.

FIG. 2 illustrates another pattern for arranging multiple LED modules.

FIG. 3 illustrates another pattern for arranging multiple LED modules.

FIG. 4 illustrates another pattern for arranging multiple LED modules.

FIG. 5 illustrates another pattern for arranging multiple LED modules.

FIG. 6 illustrates another pattern for arranging multiple LED patterns.

FIG. 7 illustrates another pattern for arranging multiple LED patterns.

FIG. 8 illustrates another pattern for arranging multiple LED patterns.

FIG. 9 illustrates shows a color space coordinate diagram.

FIG. 10 illustrates shows how to mix a desired color coordinate by usingmore than three color coordinates.

FIG. 11 illustrates a lighting apparatus for providing mixing effect fordifferent objects.

FIG. 12 shows an embodiment of a lighting apparatus.

FIG. 13 shows a tilt arrangement of the package holder for different LEDmodules.

FIG. 14 shows a manual switch example.

FIG. 15 shows another manual switch example.

FIG. 16 shows another manual switch example.

FIG. 17 shows a lens surface of the fluorescent layer.

FIG. 18 shows another lens surface of the fluorescent layer.

FIG. 19 shows another package example.

DETAILED DESCRIPTION

In FIG. 12 , a lighting apparatus includes a driver 671, a light source680, and a controller 672.

The driver 671 is used for converting an external power 6701 to generatemultiple driving currents. The light source includes a package holder6801 integrating multiple LED modules 691, 692, 693, 694 havingdifferent output light parameters. For example, the LED modules havedifferent color temperatures, colors, spectrum compositions anddistributions.

The package holder 6801 has multiple terminals 681, 682, 683, 684 forseparately receiving the driving currents to control the multiple LEDmodules 691, 692, 693, 694 independently in the package holder 6801.

The controller 672 is used for controlling the driver for adjusting arelative ratio among the multiple driving currents to render an outputlight of the light source 680 corresponding to predetermined optimizedsettings for at least an object illuminated by the light source 680.

For example, the objects may be a metal stuff, a clothing, a painting,fruit, meat or other objects. The same objects have different visualeffect under lights of different parameters. Experts know how to finddifferent sets of setting for optimizing looking of the objects in thestore, in the library or at home.

What they need is a lighting device that may be configured conveniently.In such case, the lighting apparatus mentioned here may acceptconfiguration in advance or adjust the setting dynamically by thecontroller.

The driver and the controller may be integrated as an integrated chip orproduced as multiple circuit components electrically connected. Thedriver and the controller may be integrated on the package holder orplaced as separate modules.

In some embodiments, the package holder is a substrate plate, themultiple LED modules are mounted on the substrate plate directly. Insome embodiments, the LED modules are placed in a package structureswith plastic housing and external electrodes. However, in someembodiments, a circuit board or a substrate plate is directly used asthe package holder, e.g. COB (chip on board) LED devices, which LEDchips are directly mounted on the substrate plate.

In FIG. 12 , the multiple driving currents generated by a PWM (PulseWidth Modulation) power circuit 6711. The relative ratio of the multipledriving currents corresponds to a duty ratio corresponding to eachdriving current of the PWM power circuit. For example, when there arefour LED modules, the PWM power circuit supplies driving currents to thefour LED modules sequentially and alternatingly over time. For example,the first LED module receives the driving current for a first timeperiod, then the second LED module receives the driving current for asecond time period. The other two LED modules receive the drivingcurrents under an ordered sequence, too. Then, the first LED module issupplied with the driving current again and the process is repeatedagain and again under very rapid speed.

The time period ratio determines the relative ratio mentioned above andconsequently render an output light of a corresponding opticalparameter.

In some embodiments, the multiple LED modules respectively includedifferent fluorescent layers to render the different output lightparameters.

For example, in FIG. 17 , two fluorescent layers 9891, 9892 cover thesame type of LED chip 981 forming two LED modules providing differentoptical parameters.

In some embodiments, the multiple LED modules have the same type of LEDchips.

The different output light parameters are achieved by disposingdifferent fluorescent layers.

In some embodiments, the fluorescent layers are separated by aseparating line, as illustrated in FIG. 1 to FIG. 8 . The separatingline may be straight lines, saw lines, wave lines between two adjacentLED modules.

In some embodiments, the multiple fluorescent layers are arrangedsymmetrically with respect to a center point of the light source formore evenly rendering a mixed light. This may be clearly found examplesin some patterns illustrated in FIG. 1 to FIG. 8 .

In some embodiments, the lighting apparatus may also include aseparating unit disposed between the multiple fluorescent layers.

Please refer to FIG. 17 . A separating unit 984 with a convex structure986 and a concave structure 985 for better attaching the fluorescentlayer 9891, 9892.

There may be convex and/or concave micro-structures disposed on asurface of the separating unit for better attaching fluorescentmaterial. It is particularly important when the LED modules are operatedfor a long time and the heat may loosen the attachment of thefluorescent material of the fluorescent layer.

In some embodiments, there are hooks for further enhancing theattachment. The separating unit may be made of transparent material.

In some embodiments, the separating unit has concave structure forfirmly attaching the fluorescent layers.

In some embodiments, the multiple fluorescent layers are attached to alens disposed above LED chips of the multiple LED modules.

Please refer to FIG. 19 . In FIG. 19 , the fluorescent layers 632, 633are attached to a lens 631 first and then the lens module is disposedabove the LED chip 634. In such design, the fluorescent layer isattached to the lens as a module, which brings more convenient andflexible choice during mass production because more configurations maybe made conveniently in advance while using the same LED chips or COBlight sources.

In some embodiments, a surface of the multiple fluorescent layers formsa lens surface for changing light paths of the light source.

Please refer to FIG. 17 and FIG. 18 , which show two different ways oflight path adjustment.

In FIG. 17 , the top surface 987 of the fluorescent layer is formed as acondensing lens for changing a light path 982 to a light beam 983.

In FIG. 18 , the top surface of the fluorescent layer is formed adiffusing lens for evenly diffusing the light to a diffused light 988 toa wider space to make the light more soft.

The lens surface may diffuse the light of the light source. For example,the lens surface helps diffusing the light of the light source evenly toa surface.

In some embodiments, the light of the light source is condensed as alight beam.

In some embodiments, the package holder has multiple different tiltsurfaces respectively mounting the multiple LED modules for adjustinglight output directions of the multiple LED modules.

Please refer to FIG. 13 . In FIG. 13 , the package holder 741 has twotilt surfaces 743, 742 for respectively mounting two LED modules 744,745 for adjusting output light directions to achieve a best mixed lighteffect.

In some embodiments, the lighting apparatus may also include a manualswitch for selecting from multiple options corresponding to differentoptimized object illumination sets.

There are several ways for designing the manual switch for providingmore convenient operations. For example, the manual switch may be arotation button.

In some embodiments, the manual switch may include multiple optionswitches respectively corresponding to different objects, and eachoption switch is manually turned on for enhancing illumination effectfor the corresponding object.

FIG. 14 shows a sliding switch 751. The sliding positions may correspondto different settings of the controller to control the LED moduleoperation.

FIG. 15 shows a rotating switch 752, which may be rotated tocontinuously configure a different setting while rotating.

In some embodiments, the manual switch may include multiple optionswitches, each option switch corresponding to an object type. Whenmultiple option switches are turned on, the controller determine anassociated relative ratio mentioned above for providing an optimizedlight over the illuminated objects selected.

FIG. 16 shows such an example. In FIG. 16 , each option switchcorresponds to an object type, e.g. fruit, clothing, meat. The optionswitch 753 is turned on while another option switch 754 is turned off tomanually configure the controller mentioned above.

In some embodiments, the controller adjusts the relative ratio accordingto a time parameter provided by a time device.

For example, the controller may have a clock indicating whether it ismorning, afternoon or evening. The clock may also indicate whether it isa week day or a weekend. Such time information may be associated withdifferent settings of the controller for determining a best settingcorresponding to different timing points.

This is particularly helpful and attractive in markets like Costco orsupermarkets. People have different moods in different time and suchcharacteristics may be used by market specialists to find optimizedsettings of the lighting. Such finding may be programmed to thecontroller for providing a best parameter for the market to optimize thesales of the market.

In some embodiments, the controller has multiple sets of customerparameters, when the controller receives a customer instruction from anexternal device. The controller changes the relative ratio according toone corresponding customer parameter associated to the customerinstruction. For example, the external device 674 in FIG. 12 may be aserver used in a market.

The server sends a marketing information to increase sales value. Themarketing information is packaged as a customer instruction, e.g. morewarm light needed now. The controller receives such customer instructionand translates the customer instruction into associated control signalsfor controlling the LED modules.

The external device 673 may be a light detector for detectingenvironment light parameter providing information to the controller toadjust the output of the lighting apparatus.

In some embodiments, the controller calculates the relative ratioaccording to stored parameters of the multiple LED modules when the sametype of the lighting apparatus has multiple types of combination of theLED modules.

For example, a lot of lighting apparatuses of the same type of lightingapparatus may be manufactured by a factory. Even when the lightingapparatuses are classified as the same type of product, they may havedifferent components from different suppliers. In such case, thecomponents from different suppliers may have certain difference.

The parameters of different LED modules are detected and recorded. Atable which records the parameters may be stored in a memory circuitworking with the controller for determining and finding a correspondingadjustment for providing a similar final parameter for the same type oflighting apparatus.

This feature is important for big company to provide high consistencequality of products.

In some embodiments, the controller adjusts the relative ratio accordingto a detected environment light parameter. For example, a mobile phoneor a tool for detecting light parameters of environment is used forgenerating an information that is sent to the controller and used fordetermining a final light output.

For example, the original optimized relative ratio among different LEDmodules is determined when no other light is used. If the environmenthas lot of red light, for example, the controller may decrease the redlight component when mixing lights of the LED modules.

In some embodiments, the detected light parameter is transmitted from anexternal device.

In some embodiments, the package holder has multiple electrode pins asthe multiple terminals to be plugged to a socket for separatelyreceiving the multiple driving currents.

Please refer to FIG. 11 . In FIG. 11 , a lighting device has a lens 3, acover 4, LED modules 1 mounted on a package holder 2. There is a housing6 for storing a driver and a controller. A housing 5 is used forcovering the components. Such lighting apparatus may be integrated withthe designs mentioned above. Other lighting devices like light bulbs,spot lights, panel lights, downlight devices may also be integrated withthe designs mentioned above.

FIG. 9 and FIG. 10 show two color space coordinate diagrams, showing howto mix lights from different LED modules.

Each LED module emits a light with a major color coordinate on the colordiagram. In FIG. 9 , several mixed coordinates are generated by mixinglights of two LED modules.

In FIG. 10 , four LED modules are used forming a polygonal range, withinwhich the controller mentioned above may adjust current ratio of thefour LED modules to generate a final mixed coordinate falling within thepolygonal range illustrated in FIG. 10 .

In FIG. 1 to FIG. 8 , different light source examples are illustrated.The light source 1 has a package holder 11, which is as a form of asubstrate plate 11. There are electrodes 13 disposed for separatelyreceiving driving currents.

In FIG. 1 and FIG. 2 , two fluorescent layers a1, a2 form a pattern oftwo LED modules 14.

In FIG. 3 and FIG. 4 , two fluorescent areas b1, b2 are arrangedalternatively to provide better mixing effect.

In FIG. 5 , FIG. 6 , four fluorescent areas c1, c2, c3, c4 are formedsymmetrically with respect to a middle center of the light source.

In FIG. 7 and FIG. 8 , four fluorescent areas d1, d2, d3, d4 arearranged with different patterns for providing different mixed effects.

The same reference numerals refer to the same components and are notrepeated for brevity.

The foregoing description, for purpose of explanation, has beendescribed with reference to specific embodiments. However, theillustrative discussions above are not intended to be exhaustive or tolimit the invention to the precise forms disclosed. Many modificationsand variations are possible in view of the above teachings.

The embodiments were chosen and described in order to best explain theprinciples of the techniques and their practical applications. Othersskilled in the art are thereby enabled to best utilize the techniquesand various embodiments with various modifications as are suited to theparticular use contemplated.

Although the disclosure and examples have been fully described withreference to the accompanying drawings, it is to be noted that variouschanges and modifications will become apparent to those skilled in theart. Such changes and modifications are to be understood as beingincluded within the scope of the disclosure and examples as defined bythe claims.

The invention claimed is:
 1. A lighting apparatus, comprising: a driverfor converting an external power to generate multiple driving currents;a light source comprising a package holder integrating multiple LEDmodules having different output light parameters, the package holderhaving multiple terminals for separately receiving the driving currentsto control the multiple LED modules independently in the package holder,wherein the package holder has a plastic housing for disposing theterminals, for holding the multiple LED modules and for filling afluorescent layer covering the multiple LED modules; and a controllerfor controlling the driver for adjusting a relative ratio among themultiple driving currents to render an output light of the light sourcecorresponding to predetermined optimized settings for at least an objectilluminated by the light source, wherein the multiple LED modulesrespectively comprise different fluorescent layers to render thedifferent output light parameters, wherein a surface of the multiplefluorescent layers forms a convex lens surface for changing light pathsof the light source to a condensed light beam, wherein the multiplefluorescent layers are attached to a lens first as a module and then themodule is disposed above LED chips of the multiple LED modules.
 2. Thelighting apparatus of claim 1, wherein the package holder is a substrateplate, the multiple LED modules are mounted on the substrate platedirectly.
 3. The lighting apparatus of claim 1, wherein the multipledriving currents generated by a PWM (Pulse Width Modulation) powercircuit, and the relative ratio of the multiple driving currentscorrespond to a duty ratio corresponding to each driving current of thePWM power circuit.
 4. The lighting apparatus of claim 1, wherein themultiple LED modules have the same type of LED chips.
 5. The lightingapparatus of claim 1, wherein the fluorescent layers are separated by aseparating line.
 6. The lighting apparatus of claim 1, wherein themultiple fluorescent layers are arranged symmetrically with respect to acenter point of the light source.
 7. The lighting apparatus of claim 1,further comprising a separating unit disposed between the multiplefluorescent layers.
 8. The lighting apparatus of claim 7, wherein theseparating unit has concave structure for firmly attaching thefluorescent layers.
 9. The lighting apparatus of claim 1, wherein thepackage holder has multiple different tilt surfaces respectivelymounting the multiple LED modules for adjusting light output directionsof the multiple LED modules.
 10. The lighting apparatus of claim 1,further comprising a manual switch for selecting from multiple optionscorresponding to different optimized object illumination sets.
 11. Thelighting apparatus of claim 10, wherein the manual switch comprisesmultiple option switches respectively corresponding to differentobjects, and each option switch is manually turned on for enhancingillumination effect for the corresponding object.
 12. The lightingapparatus of claim 1, wherein the controller adjusts the relative ratioaccording to a time parameter provided by a time device.
 13. Thelighting apparatus of claim 1, wherein the controller has multiple setsof customer parameters, when the controller receives a customerinstruction from an external device, the controller changes the relativeratio according to one corresponding customer parameter associated tothe customer instruction.
 14. The lighting apparatus of claim 1, whereinthe controller calculates the relative ratio according to storedparameters of the multiple LED modules when the same type of thelighting apparatus has multiple types of combination of the LED modules.15. The lighting apparatus of claim 1, wherein the controller adjuststhe relative ratio according to a detected environment light parameter.16. The lighting apparatus of claim 15, wherein the detected lightparameter is transmitted from an external device.
 17. The lightingapparatus of claim 1, wherein the package holder has multiple electrodepins as the multiple terminals to be plugged to a socket for separatelyreceiving the multiple driving currents.